Hi,
Sometimes it happens to me that, if i want to talk with a friend i accidently click on friend/unfriend which will instantly result in an unfriend. I'd suggest to make a window with the message: "do you really want to unfriend "player xyz" press yes/no"
Also I'd like to have a seperate ignore list. every time server restarts i have to put people on the ignore list with the command: /ignore player xyz which is pretty annoying.
Just my two cents :P